Aloha! Honestly, $2500 will not get you a full house in Kailua. 3 BR homes with 2 baths are more in the $3200+ range and that probably doesn't include utilities which is rather expensive unless the property has solar panels. Perhaps you can expand your search to Kaneohe or further as rents are more affordable there, but the commute won't be too bad to LJA. Not sure of school options for your daughters in Kaneohe, though.
Good luck on your move!